First of all, welcome!
Because it is what I am having to come to terms with - I have to ask if you have spent any time accepting what your life will look like with a recovering alcoholic; especially if you are engaged and looking at moving to his country to be with him? It's a different lifestyle than being with someone who is not an addict. You are taking your chances with this man.
There are some great posts and resources on the "stickies" in this forum; check them out. If Al-Anon is available in your area - go to a few meetings. Listen to others who have made the choice to accept this lifestyle and how they cope with it. Decide if its really the path you want to go down. Your fiance may never change... this simply may be how he needs to live to cope with sobriety.
The real question then becomes "what do YOU want?" Does it FEEL like the right thing to do? Only you can decide that for yourself.